Device for transferring photographic plates.



A. B; SHEPPARD. DEVICE FOR TRANSFERRING PHOTOGRAPHIG PLATES. APPLIGATIOXFILED DEC. 5, 1907.

Patented Oct. 13, 1908.

witnesses.

the wall openin AULEY'B. SHEPPARD, OF PITTSBURG, PENNSYLVANIA," 1

DEVICE FOR TBANSFERRING PHOTOGRAPHIG PLATES. i

Specification of Letters Patent.

Patented 0a. 13, 19os.j

Application filed December 5, 1907. Serial No. 405,183.

To; all whom it may concemf Be it known that I, AULEY B. SHEPPARD, aresident of' Pittsburg, in the county of Allegheny and State .of-Pennsylvania, have invented certain new and useful Improvements inDevices for Transferring Photographic Plates, of which the following isa specification. p

The primary object of this invention is to provide for so connecting twocontainers of photographic platesfo r instance,-an original plate ackageand the plate holder of a camera-t1at pla'tes may be passed from one tothe other without being exposed to light. I i

The .inventionis embodied in a holding.

device having compartments arranged side by side, with a plate-passageor opening through the wall separating the compartments, so that withplate containers within the compartments and tightly held with theiropen sides facing each other through an unexposed plate may be readilypassed from the plate package to I the camera plate holder, orinversely, an exposed plate may bedransferred from the plate holder te-apackage for confining exposed plates.

A further purpose bf the invention is to provide a universal holdingdevice-that is, a device for receiving various makes of plate packages;'also to provide improved means for clamping the plate containers inlight excluding communication with each other.

Iii the accompanying drawings F igure, 11

is-a iew partly inside elevation and partly in section of the improveddevice, showing a plate'package and a plate holder in the compartmentsthereof. Fig. 2 is a face view packs.

of the device. Fig. 3 is an end view shown partlyin section.

Referring to the drawings, the device is of box-like form and consistsoftwo compartments or pockets 2 and 3, here shown as separately formedand secured together by solder, brazing, or other suitable means.

The united faces of the compartments or pockets form the separating wall4 through which is formed the plate passage or opening 5.

Compartment 2' is open at 1ts opposite ends so that a platepackag'e Amay be introduced thereinto through-either end, as desired. I have hereshown' the form of illustrated in Letters Patent granted to me' eeember3, 1907, No. 872,761,.wluch cured at its inner end to theifree end 6 ofthe spring, the stem projecting outwardly through wall 2 package has anopen side face. B for the package is adapted tobar and provided with thethumb nut or wheel 8 which may be adjusted as desired to increase orrelax the pressure. Stem .7 may be connected to the spring by a crosspin 9 confined between the outer face of the spring and the keeper-plate10. One of these adjustments is provided for each end of spring 6'.

At the opposite open ends of'compartment 2, the metal forming the outerface is turned" or looped backwardly on face 2 as indicated 7 at 11,with. the central portion-extended inward at 11 and riveted to theholder. The

backwardly turned part 11. is spaced from face 2 and provides aconvenient cavity for thumb nut or wheel 8, stem 7 being projectedthrough the baekwardly :tu-rned'part as shown. Thus, nearly the wholesurface of each'thumb nut is so protected as-to preclude" accidentalturning. Furthermore, the backwardly turned portions materiallystrengthen the holder, making it practically rigid.

I have'here shown the camera plate holder E with its slide F adjacentipartition 4 re-- .moved so that an unexposed plate may be passed fromthe package into, the plate holder. Or, if package 8 is being utilizedfor confining exposed plates,-the relation of the parts is the same whenpassing theexposed plates from the plate holder to the package. The faceof plate holder E may be heldv in tight engagement with partition A; bythe leaf springs 12 within.-con1part- 'menta; While I have here shown,and described a plate package. or'box in one of the compartments with acamera plate holder'inthe other, the use of the improvement is not thuslimited. It may be utilized for holding plate containers of any form, orcontainers to be utilized for any purpose, the improved device holdingthe same in such relation that plates may be transferred from one to theother without exposing them to light, such transfer being accomplishedanywhere and without having access to a dark room.

1. A device of the character described consisting of a holder having twocompartments communicating with each other, each compartment adapted toreceive a plate-package having a face open for the passage of a plate,and means for pressing the containers toward and in light excludingcommunication with each other through the passage connecting thecompartments.

2. A device of the character described consisting of a holder having twocompartments arranged side by side' and communicating through theiradjacent sides, each compartment adapted to receive a plate-containerhaving a face open for the passage of a plate, and means engaging theouter faces of the containers for holding their plate-passage faces inlight excluding communication with each other hi-ough the passageconnecting the compartments.

3. A device of the character described consisting of a holder having twocompartments arranged side by side and communieating with each otherthrough their ad acent sides, each compartment adapted to receive aplate-container having a face open for the passage of a plate, andinwardly pressing spring devices within the compartments at the outerfaces thereof for 5. A device of the character described consisting of aholder having compartments in communication through a plate-passage,each.

compartment adapted to receive a plate container having a face open forthe passage of a plate, the open faces of the containers adapted to makelight excluding connection with each other, clamping means within one ofthe compartments exerting pressure on the container within thatcompartment for maintaining such light excluding connection, andadjustable mechanism for the clamping means consisting of a threadedstem and a thumb nut at the exterior of the holder.

6. A device of the character described consisting of a holder havingcompartments arranged side by side and communicating through a platepassage in the wall separating the compartments,inwardly pressingsprings within one of the compartments at the face opposite thecompartment-separating wall, an inwardly pressing spring within theother compartment at the face opposite said wall, adjusting devices atthe outer side of the holder for varying the pressure of the last namedspring, each compartment adapted to receive a plate-container having aface open for the passage of a plate, the COIII: tainers being held inlight excluding com- I munication with each other by said springs.

7. A device of the character described'consisting of a. holder havingtwo compartments arranged side by'side and in commuuication through aplate-passage in the wall separating the compartments, one of thecompartments being open at one end and the other compartment open atboth ends, I the compartments being adapted to receive plate-containerseach having an open face for the passage of a plate, and means'formaintaining the open face of the containers in light excludingcommunication with each other through the plate passage in the wallseparating the compartments.

8. A device of the character described c011 sisting of a holder havingtwo compartments communicating through a plate-passage, end portions ofone' of the compartments being .turned backwardly over the outer face ofthat compartment to form thumb nut spaces, thumb nuts in said spaces,threaded stems extending through the nuts and intothe compartments,container-engaging means at the inner ends of the stems, eachcompartment adapted to' receive a platecontainer having an open face forthe as sage of a plate with-the open faces in llght excludingcommunication with each other through the passage connecting thecompartments, pressure for maintaining such connection being'exertedlonone of; the containers by said container-engaging means.

In testimony whereof I aflix my signature 11 5 111 presence of twowitnesses.

AULEY BJsHEPrAnD. Witnesses J. M. NESBI'P, F. E. GAITHER.

